My thoughts on it are: as a developer, if you flag the issue for your management, and they want to move forward, then you’ve done your part.
Maybe put an extra comment in the code for posterity’s sake.
It’s not ultimately your problem and what else are you going to do? Work unpaid nights and weekends to fix it for some guy who might run into a problem 8 years from now?
“they are the same picture” -my wife